What we learned
In the context of this study, conducted with 316 students in the Fall 2017 and Spring 2018 semesters at the University of Nebraska–Lincoln, we can make the following correlational statements about the efficacy of Revel for Psychology, 1st edition:
- Each additional 10 percentage points students scored on Revel Psychology quizzes were associated with an increase of 1.36 (±0.41) percentage points on unit exams.
These correlational results are all based on a regression model controlling for self-reported ACT score, gender, and year in college.
Secondary analyses suggest that students who spent more time reading and interacting with Revel for Psychology, 1st edition, and who answered more questions correctly on the first attempt—both suggestive of a higher quality of engagement with the title—also tended to obtain higher unit exam scores when controlling for self-reported ACT score, gender, and year in college.
These secondary findings supplement the main findings and provide further support regarding the positive relationship between students’ use of Revel and their exam scores. Because they are supplementary to the main findings, the secondary findings should be viewed as suggestive.
In the same context, we can make the following descriptive statements.
- When asked how likely they were to recommend Revel to another student on a scale of 0 (not at all likely) to 10 (extremely likely), 41% of students provided a rating of 9 or 10, with another 43% of students providing a rating of 7 or 8.
- Revel’s net promoter score, which is an index of customer experience that captures the likelihood a student would recommend Revel to a friend, was 27.
- 92% of students said Revel was a more efficient way to study compared to other books or products.
- 72% of students said they used Revel several times a week or daily.
- 84% of students said they spent more time using Revel than other books or products.
- 100% of students completed the required aspects of the course — that is, at least three of the four unit exams and the final exam.
- Students successfully completed 93% of Revel assignments, measuring successful completion as scoring 70% or higher on the assignments and counting missing assignments as incomplete.
- 96% of students passed the course.
- The average grade for the final exam was 94.6%, and the average unit exam grades were 85.2% for instructional unit one, 82.0% for unit two, 82.9% for unit three, and 79.4% for unit four.